Ability for self renewal for many times

unlike all other body cell such as the muscle cell, nerve cell, bone cell, vascular tissue, stem cell can self renew and replicate for a very prolonged period of time into many generations.

All are undifferentiated

All the stem cells are undifferentiated. Hence, they cannot perform the function of a specific cell or tissue, such as the contraction of a muscle, carrying oxygen like the red blood cell or conduct nerve signal like the neuron.

Ability to undergoes differentiation

All stem cell has the ability to undergo differentiation into a specific cell type such as the muscle, nerve, bone, etc…